Fitness supplements to take to build muscle quickly. Helps to build muscle mass, or to cause fat loss. He was taken by bodybuilders and athletes to increase muscle and improve the performance of sporting events. Build muscle supplements are often confused with anabolic steroids. The purpose of anabolic steroids fitness However, the use of muscle-building supplement claim that the difference between anabolic steroids to build muscle amplifier. These new features will not change the level of natural hormones and anabolic steroids.